CA2393140A1 - Method and apparatus for wire speed ip multicast forwarding - Google Patents
Method and apparatus for wire speed ip multicast forwarding Download PDFInfo
- Publication number
- CA2393140A1 CA2393140A1 CA002393140A CA2393140A CA2393140A1 CA 2393140 A1 CA2393140 A1 CA 2393140A1 CA 002393140 A CA002393140 A CA 002393140A CA 2393140 A CA2393140 A CA 2393140A CA 2393140 A1 CA2393140 A1 CA 2393140A1
- Authority
- CA
- Canada
- Prior art keywords
- multicast
- entry
- data packet
- switch
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Abstract
In a switch including a plurality of ports, an IP Multicast packet arriving on an ingress port a copy of the receiver packet is forwarded to each member of the IP Multicast group at wire-speed. The packet is bridged once to a given egress port and may be routed multiple times out of the egress port. If multiple subnets exist on an egress port, each subnet that requires a copy of the packet will receive the packet with its VLAN ID included in the packet.
The received IP Multicast packet for an IP Multicast group is stored in memory, a pointer to the location of the packet in memory is stored for each port to which a copy of the packet is to be forwarded. An IP Multicast forwarding entry is provided for the IP Multicast group. The forwarding entry includes a modification entry for each packet to be forwarded to the IP
Multicast group. A copy of the stored packet is modified dependent on the modification entry and forwarded in the next available port cycle for the port.
The received IP Multicast packet for an IP Multicast group is stored in memory, a pointer to the location of the packet in memory is stored for each port to which a copy of the packet is to be forwarded. An IP Multicast forwarding entry is provided for the IP Multicast group. The forwarding entry includes a modification entry for each packet to be forwarded to the IP
Multicast group. A copy of the stored packet is modified dependent on the modification entry and forwarded in the next available port cycle for the port.
Claims (21)
1. A switch comprising:
a memory storing a multicast data packet received for a multicast group;
egress port forwarding logic, the egress port forwarding logic comprising:
a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch coupled to a member of the multicast group; and editor logic which modifies a copy of the multicast data packet received from the memory dependent on the modification entry.
a memory storing a multicast data packet received for a multicast group;
egress port forwarding logic, the egress port forwarding logic comprising:
a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch coupled to a member of the multicast group; and editor logic which modifies a copy of the multicast data packet received from the memory dependent on the modification entry.
2. The switch as claimed is Claim 1 further comprising:
ingress port forwarding logic which generates a multicast forward vector for the multicast data packet, the multicast forward vector indicating to which ports the stored multicast data packet is to be forwarded.
ingress port forwarding logic which generates a multicast forward vector for the multicast data packet, the multicast forward vector indicating to which ports the stored multicast data packet is to be forwarded.
3. The switch as claimed in China 2 further comprising:
port queue logic which stores a pointer to the multicast data packet stored in the memory in at least one port queue dependent on the multicast forward vector.
port queue logic which stores a pointer to the multicast data packet stored in the memory in at least one port queue dependent on the multicast forward vector.
4. A switch as claimed in Claim 3 wherein the port queue logic removes the pointer to the multicast data packet stored in the port queue after the stored multicast data packet has been forwarded to all members of the IP Multicast group connected to the port associated with the port queue.
5. A switch as claimed in Claim 1 wherein the modification entry comprises:
a virtual LAN identification;
a pointer to a next modification entry, a tag indicator, and a forward type indicator.
a virtual LAN identification;
a pointer to a next modification entry, a tag indicator, and a forward type indicator.
6. A switch as claimed in Claim 5 wherein the pointer to next modification entry is an index to a next modification entry for modifying a next copy of the multicast data packet.
7. A switch as claimed in Claim 1 wherein the modification entry comprises:
a virtual LAN entry stored in a virtual IAN identification table; and an intermediate entry stored in an intermediate entry stored in an intermediate LAN identification table wherein the intermediate entry includes an index to the virtual LAN entry.
a virtual LAN entry stored in a virtual IAN identification table; and an intermediate entry stored in an intermediate entry stored in an intermediate LAN identification table wherein the intermediate entry includes an index to the virtual LAN entry.
8. A method for forwarding multicast data packets in a switch comprising the steps of:
storing in a memory, a multicast data packet received for a multicast group;
providing egress port forwarding logic, the egress port forwarding logic including a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch that is a member of the multicast group associated with the multicast data packet received from the memory dependent on the modification entry;
modifying in the egress port forwarding logic, a copy of the multicast data packet received from the memory dependent on the modification entry; and forwarding by the egress port forwarding logic the modified copy of the multicast data packet to an egress port in a next available egress port cycle time.
storing in a memory, a multicast data packet received for a multicast group;
providing egress port forwarding logic, the egress port forwarding logic including a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch that is a member of the multicast group associated with the multicast data packet received from the memory dependent on the modification entry;
modifying in the egress port forwarding logic, a copy of the multicast data packet received from the memory dependent on the modification entry; and forwarding by the egress port forwarding logic the modified copy of the multicast data packet to an egress port in a next available egress port cycle time.
9. The method for forwarding multicast packets is a switch as claimed in Claim further comprising the step of:
selecting a multicast forward vector for the multicast data packet dependent on parameters included in the multicast data packet, the multicast forward vector indicating to which egress ports the multicast data packet is to be forwarded.
selecting a multicast forward vector for the multicast data packet dependent on parameters included in the multicast data packet, the multicast forward vector indicating to which egress ports the multicast data packet is to be forwarded.
10. The method for forwarding multicast packets is a switch as claimed in Claim 9 further comprising the step of:
storing, by the packet manager a pointer to the multicast data packet stored in the memory in a port queue associated with the egress pore dependent on the multicast forward vector.
storing, by the packet manager a pointer to the multicast data packet stored in the memory in a port queue associated with the egress pore dependent on the multicast forward vector.
11. The method for forwarding multicast packets in a switch as claimed is Claim 10 further comprising the step of:
removing, by the packet manager the pointer to the multicast data packet stored in the port queue after all modified copies of the multicast data packet are transmitted to the egress port associated with the port queue.
removing, by the packet manager the pointer to the multicast data packet stored in the port queue after all modified copies of the multicast data packet are transmitted to the egress port associated with the port queue.
12. The method for forwarding multicast packets in a switch as claimed is Claim 8 wherein the step of providing a modification entry comprises the step of:
providing a virtual LAN identification, a pointer to next entry, a tag indicator and a forward type indicator.
providing a virtual LAN identification, a pointer to next entry, a tag indicator and a forward type indicator.
13. The method for forwarding multicast packets in a switch as claimed in Claim 12, wherein the pointer to next entry provides as index to a next modification entry storing the parameters for a second modified copy of the multicast data packet to be seat to the egress port.
14. The method for forwarding multicast packers in a switch as claimed in Claim 8 wherein the step of providing egress port forwarding logic comprises the steps of:
providing a virtual LAN identification table; and providing an intermediate LAN identification table for storing the multicast entry wherein the multicast entry includes as index to a location in the virtual LAN
identification table including a virtual LAN identification.
providing a virtual LAN identification table; and providing an intermediate LAN identification table for storing the multicast entry wherein the multicast entry includes as index to a location in the virtual LAN
identification table including a virtual LAN identification.
15. A switch comprising.
a memory storing a multicast data packet received for a multicast group;
egress port forwarding logic, the egress port forwarding logic comprising:
a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch that is a member of the multicast group; and means for modifying a copy of the multicast data packet received from the memory dependent on the modification entry.
a memory storing a multicast data packet received for a multicast group;
egress port forwarding logic, the egress port forwarding logic comprising:
a linked list of multicast forwarding entries for the multicast group, each multicast forwarding entry including a modification entry for each port in the switch that is a member of the multicast group; and means for modifying a copy of the multicast data packet received from the memory dependent on the modification entry.
16. The switch as claimed is Claim 15 further comprising:
means for generating a multicast forward vector for the multicast data packet, the multicast forward vector indicating to which ports the stored multicast data packet is to be forwarded.
means for generating a multicast forward vector for the multicast data packet, the multicast forward vector indicating to which ports the stored multicast data packet is to be forwarded.
17. The switch as claimed in Claim 16 further comprising:
means for storing a pointer to the multicast data packet stored in the memory in at least one port queue dependent on the multicast forward vector.
means for storing a pointer to the multicast data packet stored in the memory in at least one port queue dependent on the multicast forward vector.
18. A switch as claimed is Claim 17 wherein the means for storing removes the pointer to the multicast data packs stored in the port queue after the multicast data packet has been transmitted to each member of the multicast group connected to the egress port associated with the port queue.
19. A switch as claimed is Claim l5 wherein the modification entry comprises:
a virtual LAN identification;
a pointer to next entry;
a tag indictor; and a forward type indicator.
a virtual LAN identification;
a pointer to next entry;
a tag indictor; and a forward type indicator.
20. A switch as claimed is Claim 19 wherein the pointer to next entry provides an index to a next modification entry storing the parameters for a next modified copy of the multicast data packet to be forwarded to the egress port.
21. The switch as claimed in Claim 15 wherein the modification entry comprises:
a victual LAN entry stored in a virtual LAN identification table; and an intermediate entry stored is an intermediate entry stored in an intermediate LAN identification table wherein the intermediate entry includes an index to the virtual LAN entry.
a victual LAN entry stored in a virtual LAN identification table; and an intermediate entry stored is an intermediate entry stored in an intermediate LAN identification table wherein the intermediate entry includes an index to the virtual LAN entry.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/453,344 | 1999-12-01 | ||
| US09/453,344 US6754211B1 (en) | 1999-12-01 | 1999-12-01 | Method and apparatus for wire speed IP multicast forwarding |
| PCT/CA2000/001420 WO2001041364A2 (en) | 1999-12-01 | 2000-11-30 | Method and apparatus for ip multicasting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2393140A1 true CA2393140A1 (en) | 2001-06-07 |
| CA2393140C CA2393140C (en) | 2012-08-28 |
Family
ID=23800207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2393140A Expired - Fee Related CA2393140C (en) | 1999-12-01 | 2000-11-30 | Method and apparatus for wire speed ip multicast forwarding |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6754211B1 (en) |
| JP (1) | JP4606678B2 (en) |
| CN (2) | CN1423873A (en) |
| AU (1) | AU1685101A (en) |
| CA (1) | CA2393140C (en) |
| GB (1) | GB2372415B (en) |
| WO (1) | WO2001041364A2 (en) |
Families Citing this family (85)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6983350B1 (en) | 1999-08-31 | 2006-01-03 | Intel Corporation | SDRAM controller for parallel processor architecture |
| US6532509B1 (en) | 1999-12-22 | 2003-03-11 | Intel Corporation | Arbitrating command requests in a parallel multi-threaded processing system |
| US6985964B1 (en) * | 1999-12-22 | 2006-01-10 | Cisco Technology, Inc. | Network processor system including a central processor and at least one peripheral processor |
| US6694380B1 (en) | 1999-12-27 | 2004-02-17 | Intel Corporation | Mapping requests from a processing unit that uses memory-mapped input-output space |
| US6661794B1 (en) | 1999-12-29 | 2003-12-09 | Intel Corporation | Method and apparatus for gigabit packet assignment for multithreaded packet processing |
| EP1247375B1 (en) * | 2000-01-10 | 2008-03-12 | BRITISH TELECOMMUNICATIONS public limited company | Communications network |
| US6798777B1 (en) * | 2000-04-17 | 2004-09-28 | Juniper Networks, Inc. | Filtering and route lookup in a switching device |
| US7065079B1 (en) * | 2000-05-04 | 2006-06-20 | Cisco Technology, Inc. | VC sharing for multicast in a computer network |
| US6831917B1 (en) * | 2000-05-10 | 2004-12-14 | Cisco Technology, Inc. | Network address translation for multicast virtual sourcing |
| US20020009095A1 (en) * | 2000-05-31 | 2002-01-24 | Van Doren Stephen R. | Multicast decomposition mechanism in a hierarchically order distributed shared memory multiprocessor computer system |
| US7007071B1 (en) | 2000-07-24 | 2006-02-28 | Mosaid Technologies, Inc. | Method and apparatus for reducing pool starvation in a shared memory switch |
| US8087064B1 (en) * | 2000-08-31 | 2011-12-27 | Verizon Communications Inc. | Security extensions using at least a portion of layer 2 information or bits in the place of layer 2 information |
| US7149432B1 (en) * | 2000-11-28 | 2006-12-12 | Nortel Networks Limited | Method and apparatus for equalization across plural data channels |
| EP1419599B1 (en) * | 2001-08-20 | 2013-05-29 | Skystream Networks Inc. | Controlling multiple nodes to execute messages only once, which are divided into groups, or using snmp, or a combination thereof |
| US7006495B2 (en) * | 2001-08-31 | 2006-02-28 | Intel Corporation | Transmitting multicast data packets |
| US7110405B2 (en) * | 2001-09-18 | 2006-09-19 | Integrated Device Technology, Inc. | Multicast cell buffer for network switch |
| US7039052B2 (en) * | 2001-09-19 | 2006-05-02 | International Business Machines Corporation | Selective routing of multi-recipient communications |
| US7274692B1 (en) * | 2001-10-01 | 2007-09-25 | Advanced Micro Devices, Inc. | Method and apparatus for routing packets that have multiple destinations |
| US20030076784A1 (en) * | 2001-10-24 | 2003-04-24 | Zarlink Semiconductor V.N. Inc. | Methods of performance estimation in provisioning delay intolerant data services |
| EP1318628B1 (en) * | 2001-12-10 | 2005-01-12 | Alcatel | Method and apparatus of directing multicast traffic in an Ethernet MAN |
| US20030144895A1 (en) * | 2002-01-30 | 2003-07-31 | Comverse, Inc. | Prepaid personal advisory service for cellular networks |
| US7054962B2 (en) * | 2002-03-08 | 2006-05-30 | Hewlett-Packard Development Company, L.P. | Embedded system having broadcast data storing controller |
| US20030174725A1 (en) * | 2002-03-15 | 2003-09-18 | Broadcom Corporation | IP multicast packet replication process and apparatus therefore |
| KR100893045B1 (en) * | 2002-06-27 | 2009-04-15 | 주식회사 케이티 | Broadcasting service providing system and method using the point to multi-point connection in ATM network |
| KR100884184B1 (en) * | 2002-06-27 | 2009-02-17 | 주식회사 케이티 | Method for setting up or releasing a multicast tree between two CE on MPLS VPN and method for providing multicasting service |
| US7292529B1 (en) * | 2002-07-31 | 2007-11-06 | Juniper Networks, Inc. | Memory load balancing for single stream multicast |
| US20040117468A1 (en) * | 2002-12-12 | 2004-06-17 | Linghsaio Wang | Subscribing different quality of service by simple classification |
| JP2004200942A (en) * | 2002-12-18 | 2004-07-15 | Nec Corp | Contents distribution system and contents distribution method used for it |
| US7391772B2 (en) * | 2003-04-08 | 2008-06-24 | Intel Corporation | Network multicasting |
| US7327731B1 (en) * | 2003-04-09 | 2008-02-05 | At&T Corp. | Point-to-multipoint connections for data delivery |
| CN100344122C (en) * | 2003-04-22 | 2007-10-17 | 华为技术有限公司 | Implementing Method for sending datagram type message from assigned port |
| US7626985B2 (en) * | 2003-06-27 | 2009-12-01 | Broadcom Corporation | Datagram replication in internet protocol multicast switching in a network device |
| US7317722B2 (en) | 2003-08-20 | 2008-01-08 | 3Com Corporation | System and method for distributed multicast routing |
| JP4316349B2 (en) | 2003-10-27 | 2009-08-19 | 富士通株式会社 | Packet transfer path control device and control program |
| US7362757B2 (en) * | 2003-11-26 | 2008-04-22 | Cisco Technology, Inc. | Optimizing 802.11 power-save for IP multicast groups |
| US7594996B2 (en) | 2004-01-23 | 2009-09-29 | Aquatech, Llc | Petroleum recovery and cleaning system and process |
| US20050220096A1 (en) | 2004-04-06 | 2005-10-06 | Robert Friskney | Traffic engineering in frame-based carrier networks |
| JP4401864B2 (en) * | 2004-05-17 | 2010-01-20 | パナソニック株式会社 | Packet generation method, communication method, packet processing method, and data structure |
| US8422500B2 (en) | 2004-07-02 | 2013-04-16 | Rockstar Consortium Us Lp | VLAN support of differentiated services |
| US7143218B1 (en) | 2004-08-27 | 2006-11-28 | Xilinx, Inc. | Network media access controller embedded in a programmable logic device-address filter |
| US7330924B1 (en) | 2004-08-27 | 2008-02-12 | Xilinx, Inc. | Network media access controller embedded in a programmable logic device—physical layer interface |
| JP4692355B2 (en) * | 2006-03-30 | 2011-06-01 | ブラザー工業株式会社 | Information communication system, information communication method, node device included in information communication system, and information processing program |
| US7817629B2 (en) * | 2006-05-12 | 2010-10-19 | Agere Systems Inc. | Methods and apparatus for performing network operations on packets of data in response to content of particular user-specified protocol header fields |
| US20080022079A1 (en) * | 2006-07-24 | 2008-01-24 | Archer Charles J | Executing an allgather operation with an alltoallv operation in a parallel computer |
| DE102006037020A1 (en) * | 2006-08-08 | 2008-02-14 | Wacker Chemie Ag | Method and apparatus for producing high purity polycrystalline silicon with reduced dopant content |
| US8149834B1 (en) * | 2007-01-25 | 2012-04-03 | World Wide Packets, Inc. | Forwarding a packet to a port from which the packet is received and transmitting modified, duplicated packets on a single port |
| US7752421B2 (en) * | 2007-04-19 | 2010-07-06 | International Business Machines Corporation | Parallel-prefix broadcast for a parallel-prefix operation on a parallel computer |
| US8140826B2 (en) * | 2007-05-29 | 2012-03-20 | International Business Machines Corporation | Executing a gather operation on a parallel computer |
| US8161480B2 (en) * | 2007-05-29 | 2012-04-17 | International Business Machines Corporation | Performing an allreduce operation using shared memory |
| US20090006663A1 (en) * | 2007-06-27 | 2009-01-01 | Archer Charles J | Direct Memory Access ('DMA') Engine Assisted Local Reduction |
| US8090704B2 (en) * | 2007-07-30 | 2012-01-03 | International Business Machines Corporation | Database retrieval with a non-unique key on a parallel computer system |
| US7827385B2 (en) * | 2007-08-02 | 2010-11-02 | International Business Machines Corporation | Effecting a broadcast with an allreduce operation on a parallel computer |
| US7840779B2 (en) * | 2007-08-22 | 2010-11-23 | International Business Machines Corporation | Line-plane broadcasting in a data communications network of a parallel computer |
| US7734706B2 (en) * | 2007-08-22 | 2010-06-08 | International Business Machines Corporation | Line-plane broadcasting in a data communications network of a parallel computer |
| US8165023B2 (en) * | 2007-08-28 | 2012-04-24 | Cisco Technology, Inc. | Methods for the secured interconnection of VNET sites over WAN |
| US8040883B2 (en) * | 2007-10-19 | 2011-10-18 | Wayport, Inc. | Probe insertion for one or more network address translated addresses |
| JP5012553B2 (en) * | 2008-02-15 | 2012-08-29 | 富士通株式会社 | Frame relay apparatus, route learning program, and route learning method |
| US7991857B2 (en) * | 2008-03-24 | 2011-08-02 | International Business Machines Corporation | Broadcasting a message in a parallel computer |
| US8122228B2 (en) * | 2008-03-24 | 2012-02-21 | International Business Machines Corporation | Broadcasting collective operation contributions throughout a parallel computer |
| US8422402B2 (en) | 2008-04-01 | 2013-04-16 | International Business Machines Corporation | Broadcasting a message in a parallel computer |
| US8161268B2 (en) * | 2008-05-21 | 2012-04-17 | International Business Machines Corporation | Performing an allreduce operation on a plurality of compute nodes of a parallel computer |
| US8484440B2 (en) | 2008-05-21 | 2013-07-09 | International Business Machines Corporation | Performing an allreduce operation on a plurality of compute nodes of a parallel computer |
| US8375197B2 (en) * | 2008-05-21 | 2013-02-12 | International Business Machines Corporation | Performing an allreduce operation on a plurality of compute nodes of a parallel computer |
| CN101610250B (en) * | 2008-06-19 | 2012-09-19 | 鸿富锦精密工业（深圳）有限公司 | Modem and data transmission method thereof |
| US8281053B2 (en) | 2008-07-21 | 2012-10-02 | International Business Machines Corporation | Performing an all-to-all data exchange on a plurality of data buffers by performing swap operations |
| US8238340B2 (en) * | 2009-03-06 | 2012-08-07 | Futurewei Technologies, Inc. | Transport multiplexer—mechanisms to force ethernet traffic from one domain to be switched in a different (external) domain |
| US8565089B2 (en) * | 2010-03-29 | 2013-10-22 | International Business Machines Corporation | Performing a scatterv operation on a hierarchical tree network optimized for collective operations |
| US8332460B2 (en) | 2010-04-14 | 2012-12-11 | International Business Machines Corporation | Performing a local reduction operation on a parallel computer |
| US9424087B2 (en) | 2010-04-29 | 2016-08-23 | International Business Machines Corporation | Optimizing collective operations |
| US8346883B2 (en) | 2010-05-19 | 2013-01-01 | International Business Machines Corporation | Effecting hardware acceleration of broadcast operations in a parallel computer |
| US8949577B2 (en) | 2010-05-28 | 2015-02-03 | International Business Machines Corporation | Performing a deterministic reduction operation in a parallel computer |
| US8489859B2 (en) | 2010-05-28 | 2013-07-16 | International Business Machines Corporation | Performing a deterministic reduction operation in a compute node organized into a branched tree topology |
| DE102010033432B3 (en) * | 2010-08-04 | 2012-04-05 | Harting Electric Gmbh & Co. Kg | Method for transmitting multicast data packets by a switch |
| US8776081B2 (en) | 2010-09-14 | 2014-07-08 | International Business Machines Corporation | Send-side matching of data communications messages |
| US8566841B2 (en) | 2010-11-10 | 2013-10-22 | International Business Machines Corporation | Processing communications events in parallel active messaging interface by awakening thread from wait state |
| US8893083B2 (en) | 2011-08-09 | 2014-11-18 | International Business Machines Coporation | Collective operation protocol selection in a parallel computer |
| US8910178B2 (en) | 2011-08-10 | 2014-12-09 | International Business Machines Corporation | Performing a global barrier operation in a parallel computer |
| US8667501B2 (en) | 2011-08-10 | 2014-03-04 | International Business Machines Corporation | Performing a local barrier operation |
| US9495135B2 (en) | 2012-02-09 | 2016-11-15 | International Business Machines Corporation | Developing collective operations for a parallel computer |
| US9356817B2 (en) * | 2012-04-30 | 2016-05-31 | Aruba Networks, Inc. | System and method for mitigating multicast message duplication in a wireless network |
| US11275632B2 (en) | 2018-09-14 | 2022-03-15 | Advanced Micro Devices, Inc. | Broadcast command and response |
| CN113010173A (en) | 2019-12-19 | 2021-06-22 | 超威半导体(上海)有限公司 | Method for matrix data broadcasting in parallel processing |
| CN113094099A (en) | 2019-12-23 | 2021-07-09 | 超威半导体(上海)有限公司 | Matrix data broadcast architecture |
| US11403221B2 (en) | 2020-09-24 | 2022-08-02 | Advanced Micro Devices, Inc. | Memory access response merging in a memory hierarchy |
| CN116074767A (en) * | 2021-11-04 | 2023-05-05 | 苏州盛科通信股份有限公司 | Method and application for supporting multicast replication of discrete editing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2273224B (en) * | 1992-12-05 | 1997-01-22 | Netcomm Ltd | An ATM Cell switch suitable for multicast switching |
| EP0680179B1 (en) * | 1994-04-28 | 2001-09-05 | Hewlett-Packard Company, A Delaware Corporation | Multicasting apparatus |
| KR100387048B1 (en) | 1996-03-30 | 2003-08-21 | 삼성전자주식회사 | Medium low speed subscriber multicasting embodying method and apparatus therefor |
| US5898687A (en) | 1996-07-24 | 1999-04-27 | Cisco Systems, Inc. | Arbitration mechanism for a multicast logic engine of a switching fabric circuit |
| GB2316572B (en) * | 1996-08-14 | 2000-12-20 | Fujitsu Ltd | Multicasting in switching apparatus |
| US5909438A (en) * | 1996-09-18 | 1999-06-01 | Cascade Communications Corp. | Logical multicast from a switch configured for spatial multicast |
| US6128654A (en) * | 1997-02-14 | 2000-10-03 | Advanced Micro Devices, Inc. | Method and apparatus for transmitting multiple copies by replicating data identifiers |
| US5963553A (en) * | 1997-07-11 | 1999-10-05 | Telefonaktiebolaget Lm Ericsson | Handling ATM multicast cells |
-
1999
- 1999-12-01 US US09/453,344 patent/US6754211B1/en not_active Expired - Fee Related
-
2000
- 2000-11-30 CA CA2393140A patent/CA2393140C/en not_active Expired - Fee Related
- 2000-11-30 CN CN00818328.7A patent/CN1423873A/en active Pending
- 2000-11-30 JP JP2001541181A patent/JP4606678B2/en not_active Expired - Fee Related
- 2000-11-30 WO PCT/CA2000/001420 patent/WO2001041364A2/en active Application Filing
- 2000-11-30 CN CN200810178606.9A patent/CN101447920B/en not_active Expired - Fee Related
- 2000-11-30 GB GB0212756A patent/GB2372415B/en not_active Expired - Fee Related
- 2000-11-30 AU AU16851/01A patent/AU1685101A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN101447920A (en) | 2009-06-03 |
| JP2003516029A (en) | 2003-05-07 |
| GB2372415A (en) | 2002-08-21 |
| GB0212756D0 (en) | 2002-07-10 |
| WO2001041364A2 (en) | 2001-06-07 |
| GB2372415A8 (en) | 2003-01-10 |
| CA2393140C (en) | 2012-08-28 |
| CN101447920B (en) | 2012-05-23 |
| GB2372415B (en) | 2004-04-21 |
| US6754211B1 (en) | 2004-06-22 |
| CN1423873A (en) | 2003-06-11 |
| AU1685101A (en) | 2001-06-12 |
| JP4606678B2 (en) | 2011-01-05 |
| WO2001041364A3 (en) | 2001-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2393140A1 (en) | Method and apparatus for wire speed ip multicast forwarding | |
| US6208649B1 (en) | Derived VLAN mapping technique | |
| EP1670187B1 (en) | Tagging rules for hybrid ports | |
| EP2375647B1 (en) | Method of providing virtual router functionality | |
| EP1158725B1 (en) | Method and apparatus for multi- redundant router protocol support | |
| US8819267B2 (en) | Network virtualization without gateway function | |
| US8134919B2 (en) | Method and device for protecting ethernet tree services | |
| JP3123467B2 (en) | bridge | |
| US8081633B2 (en) | Network node unit and method for forwarding data packets | |
| US6801950B1 (en) | Stackable network unit including register for identifying trunk connection status of stacked units | |
| US7995499B2 (en) | Minimizing spanning-tree protocol event processing and flooding in distribution networks | |
| WO2001065777A1 (en) | Link aggregation | |
| JP2002314571A5 (en) | ||
| US8948180B2 (en) | Routing encapsulated data packets onto selected VLANs | |
| WO2007051960A1 (en) | Multilink trunking for encapsulated traffic | |
| EP1583291B1 (en) | Individually programmable most significant bits of VLAN ID | |
| US20110142045A1 (en) | IPv6 VLAN TAG PACKET TRANSPORT OPTIMIZATION | |
| US7760630B2 (en) | Input port routing circuit that performs output port filtering | |
| EP3709584B1 (en) | Mirroring dropped packets | |
| WO2008097605B1 (en) | Method and apparatus for flexible interface bypass options in switches | |
| US7817633B1 (en) | Method of providing virtual router functionality through abstracted virtual identifiers | |
| CN105227420B (en) | Processing method, device and the system of data frame | |
| US20080194198A1 (en) | Data transfer circuit, data transfer apparatus, data transfer method, and control program | |
| US7533183B1 (en) | Central control of multiple address domains within a router | |
| US7639684B2 (en) | Modified ethernet switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20161130 |